Progress In Electromagnetics Research B
ISSN: 1937-6472
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By Z. Mohammadi, R. Saadane, and D. Aboutajdine

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Given the emphasis on increasing wireless network usage for healthcare application, e.g. Wireless Body Area Network (WBAN), the need for high-rate physical layer has become a genuine concern from research and industrial community. The use of the Ultra-Wideband (UWB) is looking especially bright for such systems given its lower energy consumption and performances towards frequency-selective channels. However, the Multi-Band-OFDM-based UWB technique has some inherent limitations as loss in spectral efficiency due to the use of Cyclic-Prefix (CP). In this paper, a new physical layer scheme for high-rate wireless body area networks based on MB-OFDM with Offset Quadrature Amplitude Modulation (OQAM) modulation is presented. The proposed MB-OFDM/OQAM can achieve high spectral and power efficiency than conventional MB-OFDM system. Moreover, the use of the CP Interval in the conventional MBOFDM removes efficiently the Inter-Symbols Interferences (ISI) but remains ineffective towards the Inter-Carriers Interferences (ICI) caused by the channel frequency offset (FO). The performances evaluation of the proposed technique will be carried-out in realistic UWB-WBANs channels with various scenarios, which will be also presented and studied herein.

Z. Mohammadi, R. Saadane, and D. Aboutajdine, "New High-Rate UWB Scheme for WBAN-Based Healthcare Systems," Progress In Electromagnetics Research B, Vol. 60, 125-139, 2014.

1. Hamalainen, M., P. Pirinen, Z. Shelby, and J. Iinatti, "Wireless applications in healthcare and welfare," Advances in Mobile and Wireless Communications: Views of the 16th IST Mobile and Wireless Communication Summit, Lecture Notes in Electrical Engineering, Vol. 16, 351-364, I. Frigyes, J. Bito, P. Bakki, Eds., 2008.

2. Pan, J., "Medical applications of ultra-wideband (UWB),", Apr. 2008, Available Online: http://www1.cse.wustl.edu/ jain/cse574-08/ftp/uwb/index.html.

3. Gyselickx, B., et al., "Human ++: Autonomous wireless sensors for body area networks," Proc. IEEE Custom Integr. Circuits Conf., 13-19, Sep. 2005.

4. Yuce, M. R., et al., "A MICS band wireless body sensor network," IEEE Wireless Communications and Networking Conference, 2473-2478, 2007.

5. Yu, B. and L. Yang, "ECG monitoring over Bluetooth: Data compression and transmission," IEEE Wireless Communications and Networking Conference, 1-5, 2010.

6. Keong, H. C. and M. R. Yuce, "Low data rate ultra wideband ECG monitoring system," IEEE Engineering in Medicine and Biology Society Conference (IEEE EMBC08), 3413-3416, Aug. 2008.

7. Miranda, H., V. Gilja, C. A. Chestek, K. V. Shenoy, and T. H. Meng, "HermesD: A high-rate long-range wireless transmission system for simultaneous multichannel neural recording applications," IEEE Transactions on Biomedical Circuits and Systems, Vol. 4, No. 3, 181-191, Jun. 2010.

8. Anliker, U., et al., "AMON: A wearable multiparameter medical monitoring and alert system," IEEE Transactions on Information Technology in Biomedicine, Vol. 8, 415-427, 2004.

9. Di Bari, R., Q. H. Abbasi, A. Alomainy, and Y. Hao, "An advanced UWB channel model for body-centric wireless networks," Progress In Electromagnetics Research, Vol. 136, 79-99, 2013.

10. Batra, A., J. Balakrishnan, G. R. Aiello, J. R. Foerster, and A. Dabak, "Design of a multiband OFDM system for realistic UWB channel environments," IEEE Transactions on Microwave Theory and Techniques, Vol. 52, No. 9, 2123-2138, 2004.

11. Mohammadi, Z., R. Saadane, and D. Aboutajdine, "Improving the estimation of the degrees of freedom for UWB channel using wavelet-based denoising," European Journal of Scientific Research, Vol. 79, No. 4, 577-591, Jul. 2012.

12. Saadane, R., A. Menouni, R. Knopp, and D. Aboutajdine, "Empirical eigenanalysis of indoor UWB propagation channels," IEEE Global Telecommunications Conference, GLOBECOM' 04, Vol. 5, 3215-3219, 2004.

13. Le Floch, B., M. Alard, and C. Berrou, "Coded orthogonal frequency division multiplex [TV broadcasting]," Proceedings of the IEEE, Vol. 83, No. 6, 982-996, 1995.

14. Daubechies, I., "The wavelet transform, time-frequency localization and signal analysis," IEEE Transactions on Information Theory, Vol. 36, No. 5, 961-1005, 1990.

15. Du, J. and S. Signell, "Time frequency localization of pulse shaping filters in OFDM/OQAM systems," 6th International Conference on Information, Communications & Signal Processing, Singapore, Dec. 2007.

6. Standard ECMA-368, High Rate Ultra Wideband PHY and MAC Standard, 3rd Ed., ECMA International, Dec. 2008.

17. Vangelista, L. and N. Laurenti, "Efficient implementations and alternative architectures for OFDM-OQAM systems," IEEE Transactions on Communications, Vol. 49, No. 4, 664-675, Apr. 2001.

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